CB-OTH MK III
BM2 Rickey Thomas
CB-OTH MK III- by definition; is a CG Standard boat (COMDTINST M16114.4)
-An aluminum boat with deck, hull, and transverse bulkheads fabricated of 5068 Marine Grade Aluminum.
-Non Skid covered walking surfaces.
-Inflatable collar mechanically attached to hull- material: fabric and external layer of hypalon.
-Canadian made: Zodiac Hurricane Technologies Inc.
Mission:
-Deployed on HighRange and MediumRange Endurance Cutters.
-Execute Non Complaint Vessel Pursuits, tracking, interrogating, and identifying vessels of interest.
-Operates within 30 NM of Cutter.
-Capable of operating in helicopter operations.
Limitations:
- 13 total personnel onboard
- 8’ seas
- 30 KTS winds
- 250 NM Range
- 30 NM range from cutter
- 2 GWT or 25’ tow capacity(URGENT SAR ONLY).
- No ice breaking capabilities
- Lacks balanced buoyancy or ability to lay-to in a following sea
- Boat Davit and Lifting fixture must have safety factor of six
- Single point davit lifting evolution shall only have coxswain onboard
Boat Spec’s:
- Length (LOA) ----- 24’ 9”
- Length of Rigid hull----- 21’1”
- Beam -----9’
- Inflatable Collar Diameter -----22”
- Draft -----21” (outdrive up)
- Freeboard amidship -----27” (with max weight, no crew)
- Hoist weight -----5415 lbs (fully outfitted, no crew)
- Propulsion Machinery-----(1) Yanmar 6LP STZP/STZPS diesel engine (6 cylinder)
- 315 Horsepower ----- w/Mercruise Bravo 1X Outdrive
- Fuel Capacity -----85 Gallons
- Speed -----42 + KTS
- Top RPM ----- 3800
- Cruising Speed -----26 KTS at 2700 RPM
- Fixed Height above waterline----- 7’ 4.5” (blue light)
- Crew Capacity -----5 seats
- Hull-----¼” aluminum (single planning strake/port & starboard sides)
- Deck ----- 5/32” aluminum
- 5lbs dry chemical ----- Fire extinguisher on port side of coxswain console
- Two (2) 12 VDC ----- Marine Grade Batteries (Under Coxswain seat)
- Hydraulic Steering ----- w/ steering wheel, helm pump, interconnecting hoses, and steering actuator.
- Antenna Arch - vhf-fm antenna, GPS, 24” radome, blue light, nav lights, two flood lights, loudhailer.
- Integrated Crew Communications System ---- six (6) stations.
- Navigation ----- Furuno Scalable Integrated Navigation System (SINS package).
- Bilge Pumps ----- 2000 GPH located on bilges centerline, forward and aft of engine.
- AIS-auto inflation system for collar/located in engine compartment-port side under aluminum cover.
Propulsion System:Vertical six (6) cylinder, with water cooled turbo charger
- 255 Horsepower ----- @ 3600 RPM 315 Horsepower @ 3800 RPM
- Low Idle Speed ------750 (+- 25 RPM)
- Engine fuel system ----- Bosch distributor type fuel injection pump
- Manual fuel priming pump
- Drain ----- bottom of fuel filter
- Injection nozzles ----- six (6) dual-spring type, pinhole injection nozzles
- Fuel oil cooler ----- uses seawater as cooling medium
- Engine cooling water system ---- seawater to cool jacket water/maintains engine operating temp
- Jacket water pump ----- belt driven (mounted inboard of alternator and above main crankshaft pulley
- Seawater cooling pump --- mechanically driven (starboard side, forward side of engine below fuel filter)
- Seawater strainer ----- in-line seawater strainer (mounted inside engine compartment, starboard side)
- Jacket water cooler ----- shell and tube type cooler
- Jacket water tank ----- mounted w/pressure actuated filler cap top starboard/engine 3.57 gallon capacity
- Expansion tank ----- mounted in engine compartment/starboard forward bulkhead- 0.42 gallon capacity
Lubrication System: Wet-sump, pressure type system
-Oil Capacity ----- 2.77 Gallons
- Lube oil type ------API Classification of CD and SAE 15W40
- Oil Fill Cap ----- forward top of engine valve cover
- Dip Stick ----- Starboard side of engine
Engine Instrument Panel: Coxswain Console
- Lube Oil Pressure gauge
- Cooling water temperature gauge
- Engine tachometer with hour-meter
- Alarm lamp Unit
a.) Battery Charge ----- low or high battery charge
b.) Cooling Water Temp ----- cooling water temp above 203o degrees f.
c.) Lube Oil Pressure ----- lube oil pressure below normal
d.) Cooling Water Level ----- water level in engine mounted water tank is low
e.) Gear Oil ----- oil level in the outdrive is low
f.) Boost ----- suction pressure to turbocharger is excessive
g.) Fuel Filter ----- drain in fuel filter water separator needs cleaning
h.) Exhaust ----- insufficient cooling water being discharged with the exhaust
i.) Diesel Preheat ---- diesel glow plug system is activated
- Start/stop and alarm annunciator ----- starboard side of the Coxswain console
- Cold Weather Start System --- Kim Hotstart System (when temp is below 320F) connected to shore tie
Mercruiser Bravo 1X Outdrive: Splined drive shaft and universal joint
- Hydraulic Trim Actuators ----- two (2) connect stern drive to transom
- Electro Hydraulic Trim Pump ----- Quicksilver Power Trim and Steering fluid or SAE 10W30 or SAE 10W40
- Outdrive Oil System ----- Quicksilver Hi-Performance Gear Lube (88 ounces)
- Mercathode Controller-----12 VDC/located on inner transom below power trim reservoir
- Propeller ----- Bravo 1 stainless steel, four (4) bladed propellers. 15 ¼” diameter w/ 24” pitch
Engine Controls: Start/stop and alarm annunciator panel
- Starter ----- key switch actuates a 12 VDC, 2.5 kW starter
- Red Stop Button ----- on panel actuates solenoid valve/ injection pump cuts off fuel supply
- Engine Kill Switch ----- aft and below throttle control handle mount w/ 36” lanyard
Steering System: Sea Star 2 helm system w/ single steering wheel and helm pump
- Steering Wheel
- Helm Pump
- Interconnecting Hoses
- Steering Actuator ----- attaches to steering lever of outdrive unit using clevis pin retained by cotter pin
- Steering System Servicing ----- 2 quart capacity
Authorized type hydraulic fluids:
Seastar Hydraulic Fluid HA 5430
Texaco H015
Shell Aero 4
Esso Univis N15 or J13
Chevron Aviation Fluid A
Mobil Aero HFA
Fluids meeting MIL-H-5606C
Hull Fuel System: 85 Gallon polyethylene tank with integral fuel gauge sending unit
- Location ----- mounted amidships in the hull
- FloScan System ----- provides accurate indication of boats fuel consumption
a.) Meter
b.) Supply and Return flow sensors
c.) Pulsation Damper
d.) Reset Switch
- FuelTransportation ----- from tank fuel fill station on bow using 1 1/2” fire retardant hose
- Tank Vent Fitting ----- located on port bow forward of deck fill. Vented by rubber hose and vent fitting
- Fuel Supply and Return Lines ----- 3/8” fire retardant hoses
- Supply Fuel Flow Sensor ----- located forward bulkhead of engine compartment near centerline
- Pulsation Damper ----- Two (2) located forward bulkhead of engine compartment near centerline
-Return Fuel Flow Sensor ----- inside engine compartment, port side forward of secondary fuel filter
- FloScan Meter ----- Coxswain console LCD display
- FloScan Reset Switch -- inside Coxswain console * switch should be actuated to reset LCD after refueling.
Hull System: 5068 Marine Aluminum w/attached inflatable collar
- Transom ----- 5086 marine Grade Aluminum
- Engine Cover ----- Aluminum plate with aluminum stiffeners, supported by gas filled lifting cylinders
- Hull and Deck ----- 5086 marine Grade Aluminum
- Transverse Bulkheads ----- Aluminum
- Mooring Cleats ----- Mounted atop transom on port and starboard side
- Self Bailing Deck drains ----- (2) self bailing drains/transom port and starboard sides one way scuppers
- Jam Cleats ----- Outboard atop the transom (for securing nylon line for self bailing deck drains)
- Inflatable Collar ----- Fuel resistant, abrasion-resistant and suitable for temp -45 to +1250 F
- Rubbing Strakes ----- Five (5) rubbing strakes
- Life Line ----- runs length of inflatable collar
- Chambers ----- Inflatable collar is made up of five (5) chambers (equipped w/ manual fill valves)
- Inter-Communicating Fill valves ----- allows filling of collar w/ 3.5 PSI from one location
- Pressure Relief Valves ----- relieve excess pressure
- Molded Cradle- Inflatable collar rests on molded cradle formed by perimeter. Bolted to hull inside and out
- 12 VDC Pump ----- Located in engine compartment, aft, port side. Toggle switch on NAV console
- Main Auto-Inflation Hose ----- Connect to inflatable collar in port aft section of collar
- Crew Seats ----- Five (5) Shockwave seat in modified Delta Configuration
- Jump Seats ----- attached to seats 2 & 3
Electrical System:
- Alternator ----- belt driven by pulley, mounted on main crankshaft/ 80 amps 12 VDC.
- Batteries ----- Two (2) 12 VDC marine grade, lead-acid batteries, mounted under Coxswain console.
- Starter ----- 12 VDC, 2.5 kW, port side of engine, aft of fuel injection pump below intercooler.
- ShorePowerConnector--Port side of Coxswain console adjacent to battery switch. 30 AMPS 125 VAC
- Battery Switch -- Two (2) which can be paralleled. One for engine starting, other for house AUX battery
- Battery Charge switch and battery condition indicator- Shown on alarm lamp panel/coxswain console
- Battery Charger -- inside console on forward bulkhead, 110 VAC to 13.3 VDC charge in starting battery
- Breaker Panel ----- inside coxswain console
a.) Main 30 AMP
b.) Battery Charger
c.) Block Heater
d.) Spare
- Nav lights ----- 12 VDC
- DC to Dc converter ----- 12 VDC to 24 VDC step up converter is located in Nav console (starboard side)
- Coxswain Console switches & Breakers
a.) Bilge Pump
b.) Horn
c.) Nav Lights/Anchor Lights
d.) Flood Lights
c.) Strobe Lights
d.) Battery Parallel
e.) Aft 12 VDC Plug
- Coxswain console fuses (inline)
a.) Auto Inflation 20 amp
b.) Starting Battery Charger 14 amp
c.) House Battery Charger 14 amp
d.) Mercathode 20 amp
e.) FloScan (two fuses) 0.5 amps
f.) Bilge Pump 30 amps
- Coxswain Console breakers -- Three (3) circuit breakers, two (2) 100 amp breakers and one (1) 25 amps
- Navigation Console Fuses
a.) hailer 5 amp
b.) Heading Sensor 1 amp
c.) RD30 1 amp
d.) GPS 1 amp
e.) Radar 10 amp
f.) Intercom 5 amp
g.) Converter 5 amp
h.) VHF-FM Brain 20 amp
i.) VHF-FM(1) Head 3 amp
j.) VHF-FM(2) Head 3 amp
k.) MOBAT HF 30 amp
l.) MOBAT HF 7.5 amp
Communications/Navigation System:Port Crewman Console- Communication / Starboard- Navigation
- FURUNO NAVnet ----- Multi-function display, radar, chart. GPS, heading, depth data
- FURUNO DGPS -- GPA - 019 antenna for: Standard GPS, Ground based differential GPS, Satellite Differential GPS
- Port Operators Console -- Motorola VHF- FM, MICOM 3T HF Radio, Furuno Loudhailer/Siren
- Motorola VHF-FM XLT 5000 --- 12 VDC and 36” Shakespeare VHF – FM radio
- Loudhailer --- 30 watts, yelps: UNWY, SAIL, TOW, STOP, ANCH, and AGND
- FURUNO RD30 ---- Coxswain console, transducer bottom transom, starboard side of centerline
- Graytronics Intercom System ----- located on all seats, additional outlet port side of coxswain console
- Master Control Station ----- located inside drop-down panel on forward side of communication console
- Radio System -----VHF-FM and HF radio systems w/encryption capability
- Motorola Micom 3T HF radio ----- range 1.6 to 30 MHz / RF output 125 watts by RF-5032 125E
- MINTERM KY-99A COMSEC -- designed for use w/ half duplex, narrowband, and wideband communication
- VHF-FM spectra RT -- modes: normal (clear) Secure-net digital (coded) or both. 25 or 50 watt / 146-174 MHZ
- HF antenna system ----- Shakespeare AT – 1011/U antenna frequency range from 1.8 to 30 MHz / 10-150 watts
- Vicor DC-DC ----- converts 12 VDC to 24 VDC, 25 amps to communication equipment
- 406 MHz EPIRB ----- Category 1, class 2, mounted on port side of coxswain console
Fire Suppression System: five (5) suppression system in engine compartment
- Xintex Fireboy Fire Suppression System ---- gas cylinder mounted engine compartment cover
- FirePort
- Fireboy gas cylinder ----- contains FE-241 chlorotetreflouroethane agent, activates temps over 1750 F
- Engine Shutdown Module ---- electronic relay module which actuates cylinder discharges
- System display unit ----- Coxswain console and indicates charged/discharges status
Trailering: Custom built MYCO Trailers designed for roadways and transport on C-130
- Tow Vehicle ----- must have following requirements
a.) Engine adequate power
b.) Transmission and rear-end designed for towing
c.) Larger cooling system for engine and transmission
d.) Heavy-Duty Brakes
e.) Load bearing hitch attached to frame, not bumper
f.) Heavy duty suspension
- Hitch ----- minimum class V hitch capable of 7,000 lbs. Hitch must be stamped or have sticker
- Ball mount and ball ----- 2 5/16” and rating of 7,000 lbs, must be stamped & 800 lbs or less tongue when level
- Trailer coupler ----- 2 5/16” and rating of 7,000 lbs
- Safety Chains ----- Must be ½” galvanized steel, bitter ends ½” galvanized screw pin shackles w/2 ton rating
- Hydraulic Brake Actuator ----- chain must be attached by ¼” shackle and additional ½” shackle
- MSST Configuration --MSST’s authorized use of pintle hook and lunette eye hitch system when on DOD deployment
- Trailer construction ---- primary frame is ¼” x 3 ¼” x 6” aluminum C Channel
a.) suspension is a torsion axle system
b.) four wheel configuration (two on each side and one spare)
c.) wheels attached to hub system
d.) MYCO trailers used LED’s for brake, tail, and clearance lights
-Securing to trailer ----- tie down straps must be attached/tightened between U-bolts, tie downs 6,000lbs rating